Historical Rules · 25 January 2019
Rule 100.4b
Official source text from the 25 January 2019 Rules release
In limited play involving individual players, all cards in a player's card pool not included in their deck are in that player's sideboard.
Historical Rules · 25 January 2019
Official source text from the 25 January 2019 Rules release
In limited play involving individual players, all cards in a player's card pool not included in their deck are in that player's sideboard.